=> find /hperpo -name "test.*" === return the pathnames of the file where can be find=> find . -size -11c ====returns the filenames less than 11 bytes size

Running command Sequencially

-> using semicolon[;],double and[&&]

=>for example

=> ls; mkdir sample; touch sample/sample.txt;rm -r sample

=>Pros -> it executes the commands even the previus command fails=>Cons -> what if the commands you run in previus is wrong then you delete it in last command, maybe you need back again

AND [&&]=> used the output of the previous command as the input of the current command=> if previous command fails, the next command doesn't execute=>sample=> ls && mkdir sample && touch sample/sample.txt && rm -r sample

OR [||] => it acts as the independent command that executes if the previous fails=>sample=> ping -c 192.168.5.33 || echo "can't ping the address"